Guy wire clamp



1955 c. w. PETERSEN 2,700,807

GUY WIRE CLAMP Filed Jan. 12, 1952 2 sh t -sh t 1 INVENTOR. Glif/o d MP9 sen Feb. 1, 1955 Filed Jan. 12. 1952 c. w. PETERSEN 2,700,807

GUY WIRE CLAMP 2 Sheets-Sheet 2 A INVENTOR. Clifford W United States Patent GUY WIRE CLAMP Clifford W. Petersen, Wauwatosa, Wis., assignor to McGraw Electric Company, Milwaukee, Wis., a corporation of Delaware Application January 12, 1952, Serial No. 266,188

1 Claim. (C1. 24-125) This invention relates to an improvement in guy wire clamps to be used in connection with electrical equip ment.

Most of the guy wire clamps in use at present con sist of two plates with parallel grooves in them. The wires are clamped between the grooves in the two plates and held in place by bolts alternately spaced between the wires. It has been proven in various investigation tests that a clamp which utilizes a slight wave or has a V groove gives greater clamping power to the guy clamp. I, therefore, have devised a guy clamp based on the superior clamping power of an undulated form.

The object of this invention is to provide a guy wire clamp which provides a wedge lock with the wire.

Another object of this invention is to provide a means of clamping wires into an undulated position where the wires are secured.

A further object is to provide a clamping means whereby the wires will not slip in the clamp.

And still another object is to provide a clamping means in which any tendency that there may be for the wires to straighten will cause the clamp to form a tigher hold on the wires.

Further objects will appear from time to time in the course of the specification and claim.

I illustrate my invention in the accompanying drawings, in which:

Fig. l is a perspective view with parts broken away of my clamp in the open position with the wires between the two parts of the clamp.

Fig. 2 is a side elevation with parts broken away of my clamp in the closed position on the wires.

3 is a plan view of the clamp in the position of 4 is a sectional view taken on the line 4-4 of Referring to Figs. 1 and 3, the clamp consists of an upper arm 1 and a lower arm 2 shaped somewhat like cranks or levers. The arm 1 has internal splines 3 and 4 slightly to right and left of center extending at right angles to the shaft from a plate-like portion 5 at one end of the arm 1. At the other end of the arm from the splines is a handle portion 6 also at right angles to the shaft of the arm. The handle 6 has a bolt hole 7 in it.

The lower arm 2 also has external splines 8 and 9 extending at right angles to the shaft from a plate-like portion 10 at one end of the arm 2, the inner face of the splines on the center line. This plate-like portion 10 is broken away in Fig. 1 so that the splines can be more easily seen. The dash line indicates where it would be. These plate-like side pieces 5 and 10 form a side wall which prevents the wires from slipping out sideways. At the other end of the shaft from the splines is a handle 11 also at right angles to the shaft and having a bolt hole 12 in it. The splines and handle of the arm 1 extend at right angles to the shaft in the opposite direction from the splines and handle of arm 2 so that when assembled the two arms are complementary to each other.

2,700,807 Patented Feb. 1, 1955 The arm 2 has bearing wall segments extending from the outer circumference of the plate-like portion 10. The bearing wall 13 projects outwardly beyond the spline 8 and the bearing wall 14 projects inwardly of the external spline 9. These segments of a circle 13 and 14 form an enveloping means for holding the internal splines 3 and 4 of the arm 1 and they also provide a riding means for a wedge lock action between the two arms.

In operating this clamp, the wires are placed parallel to each other over the splines of arm 2 and then the arm 1 with its splines is interlocked from the other side, thus holding the wires in place. By referring to Figs. 1 and 2 it can be seen how the clamping action takes place. The handles 6 and 11 are drawn toward each other and a bolt 15 inserted in the bolt holes 7 and 12 of the two lever arms in such a manner as to extend between the two wires 16 and 16a. As the arms are clamped together, they rotate relative to one another until they have assumed a clamping position as shown in Fig. 2. The wires conform to the movement of the splines which results in an undulating configuration. When the wires are held in this undulating configuration with pressure on them from both sides inwardly, the wires cannot possibly slip or move. Any pressure that might tend to straighten the wire will only increase the pressure on the component clamping part and snub the wires even more tightly.

Thus, it can be seen that my guy wire clamp with its wedge lock action on the wires provides an extremely effective means of fastening the looped back ends of guy wires so that they will not slip or loosen. It is a simple clamp to operate and is adaptable to various sized wires and cables. By addition of V grooves in the bearing surfaces of the splines it is possible to further increase the clamping power of the guy clamps.

I claim:

A clamp comprising a first and a second member relatively rotatable about an axis common to each, each of said members including a plate-like portion spaced from and substantially in parallel relation to the plate-like portion on the other member, a handle portion integral with each of said members and having a bolt receiving hole therein, said first member having two external splined projections normal to and integral with the corresponding plate-like portion. each external splined projection having a bearing wall projecting arcuately therefrom about said axis and a wire engaging face, said second member having two relatively spaced internal splined projections normal to and integral with the corresponding plate-like portion and a wire engaging face parallel to and offset from a corresponding face on said external splined projections, said internal splined projections disposed between said external splined projections and each in bearing relation to an adjacent bearing wall.

References Cited in the file of this patent UNITED STATES PATENTS 81,312 Weaver Aug. 18, 1863 928,392 Markham July 20, 1909 1,250,599 Lee Dec. 18, 1917 2,087,125 Smith July 13, 1937 2,226,393 Seeger Dec. 24, 1940 2,259,068 Johns Oct. 14, 1941 2,287,414 Buckner June 23, 1942 FOREIGN PATENTS 195,479 Great Britain Apr. 5, 1923 374,720 Germany June 14, 1922 

